Grant's Zebra and Waterbuck

It appears to me that the middle zebra is in fact a Burchell's (Damara), and not a Grant's.

Maybe, but the map and species list both don't include Darma zebras.

I can assure you that the middle zebra is A Burchell's/Damara - note the shadow stripes and the lack of stripes on the lower legs. It is likely that this particular zebra is either a recent addition, or the zoo has just chosen not to distinguish it from the other zebras as most visitors would likely not notice or care.

True! Thanks for pointing that out.